TY  - JOUR
T1  - Impact of the Liquid-Vapour Equilibrium Modelling on the Simulation Performance of an Absorption Chiller
AU - , Nihel Chekir AU - , Khalifa Mejbri AU - , Ahmed Bellagi 
JO  - Journal of Engineering and Applied Sciences
VL  - 1
IS  - 4
SP  - 468
EP  - 475
PY  - 2006
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2006.468.475
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2006.468.475
KW  - absorption
KW  -liquid-vapour equilibrium
KW  -NRTL-virial approach
KW  -SRK EOS
KW  -PC-SAFT EOS
KW  -distillation column
KW  -COP
AB  - The simulation of an absorption chiller requires thermodynamic models to represent the liquid-vapour equilibrium and the different properties of the mixture. Three models are tried to find the one which leads to a realistic description according to the experimental data that we dispose of. The first study is based on the NRTL model to describe the liquid phase and the Virial equation of state to represent the vapour one. The second model is the Sovave-Redlich-Kwong equation of state and the last is the PC-SAFT equation of state. We realize that an acceptable deviation on the compositions and the temperatures calculated by the proposed methods has significant effects on the simulation of the column parameters, i.e. the number of theoretical stages necessary to accomplish the separation and the position of the feed stage as well as on the quantity of heat provided to the reboiler, which affects the value of the COP of the machine.
ER  -